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Added 12 mins ago
OA
Applied AI Engineer - Winnipeg
Outlier AI
Montreal, QC · Greater Montreal Metropolitan Area
- Full-time
We have experience designing multi-stage coordination tasks where data gathering leads to reasoned outcomes.
Added 12 mins ago
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Adobe Site Reliability Engineer (SRE) – CDN & Web Performance
I8IS - Infiniti Software Solutions
Toronto, ON
- Full-time
We are seeking a highly skilled and proactive Adobe Site Reliability Engineer (SRE) specializing in CDN and Web Performance to join our client's dynamic team.
Added 29 mins ago
ZT
Développeur de logiciels, professionnel II/ Software Engineer, Professional II
Zebra Technologies
Montreal, QC · CAN - Montreal, Canada
- Full-time
Added 41 mins ago
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Software Engineer in Test
LTM
Mississauga, ON
- $103,554 to $115,200 CAD / year
- Full-time
Job Role – Software Development Engineer in Test
Added 41 mins ago
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GenAI Prompt Engineer
TechDoQuest
Toronto, ON
- Contract
-Collaboration: Work closely with cross-functional teams including data scientists, engineers, and product managers to implement and test improvements.
Added 41 mins ago
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IOHUB Design Verification Engineer
AMD
Markham, ON
- $128,000 to $192,000 USD / year
- Full-time
IOHUB sits at the center of the system’s data paths. It includes two foundational IP blocks, IOHUB Core and IOMMU, as well as the IOHUB. IOHUB Core is the system’s PCI host bridge and…
Added 44 mins ago
M
AI Security Architect
Manulife
Toronto, ON
- Full-time
5+ years of experience designing and implementing security controls for cloud platforms, data platforms, and large-scale enterprise technology solutions.
Added 59 mins ago
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Senior Software Engineer
Pebl
Remote, Canada
- $122,835 to $180,000 CAD / year
- Full-time
- Remote
This is a true full-stack role. You’ll own features end to end: the APIs, data models, and services behind our LLM-based product, and the conversational interface people actually use.…
Added 1 hour ago
RC
Senior AI Engineer
Realtek Consulting LLC
Toronto, ON
- Contract
Demonstrated ability to design and explain solution architecture (data flow, runtime flow, interfaces, failure modes, and controls) and to explain model behaviour, limitations, and…
Added 1 hour ago
TE
Senior Structural and Geostructural Engineer - Shoring Design
Tarra Engineering and Structural Consultants Inc.
Markham, ON
- Full-time
…instrumentation, and monitoring services. We are seeking an experienced engineer with a strong background in shoring and excavation support design to join our team in…
Added 1 hour ago
GU
AI Agentic Systems & Automation Engineer
GenCore Utilities Ltd.
Markham, ON
- $100,000 to $140,000 CAD / year
- Full-time
GenCore Utilities Ltd. is seeking an AI Agentic Systems & Automation Engineer to design, build, and deploy AI solutions that improve engineering, operations, project delivery, and business…
Added 1 hour ago
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Senior Manager, Data Engineer, Applied AI Data Ingestion & Integration
BMO
Toronto, ON · FCP
- Full-time
The Applied AI Data Ingestion & Integration (DII) team provides end‑to‑end services to help move, prepare, and operationalize data for AI and analytics workloads. As a Senior Manager within…
Added 1 hour ago
KG
Senior Platform Engineer
Kinross Gold Corporation
Toronto, ON
- Full-time
…are seeking a highly technical and hands-on Senior Platform Engineer to drive the evolution of our hybrid infrastructure ecosystem spanning on-premises datacenters, cloud platforms,…
Added 1 hour ago
LT
Senior Python Developer
Lorven Technologies Inc.
Toronto, ON
- Contract
…This role is suited for an experienced, self-directed software engineer who can operate with a high degree of autonomy, take ownership of outcomes, solve ambiguous problems, and deliver…
Added 1 hour ago
AI
Marine Certification Engineer
Aversan Inc.
Halifax, NS · Greater Halifax Metropolitan Area
- Full-time
Review the Captain’s Ship Book and ensure vessel certificates remain valid, current, and aligned with the ship’s Technical Data Package.
Added 1 hour ago
AI
Certification Engineer
Aversan Inc.
Victoria, BC
- Full-time
Review the Captain’s Ship Book and ensure vessel certificates remain valid, current, and aligned with the ship’s Technical Data Package.
Added 1 hour ago
S
Head of Data Systems (Google Stack)
Stacktics
Toronto, ON
- Full-time
The Head of Data Systems (Google Stack) will play a key role at Stacktics, required to help create and maintain industry-leading quality and efficiency of service and software delivery.
Added 1 hour ago
Agentic AI Architect, Kitchener, ON ( Hybrid)
Siemens
Kitchener, ON
About Siemens Digital Industries Operations Software: It is a suite of integrated digital solutions to engineer, simulate and operate manufacturing operations across industries. Operations…
Added 1 hour ago
Associate Technical Services Engineer II
MongoDB
Toronto, ON
…root causes, and provide practical solutions for largescale, data intensive…
Added 1 hour ago
S
Software Engineer, Streaming Platform
Sentry
Remote, Canada
- $163,000 to $200,000 CAD / year
- Full-time
- Remote
…infrastructure that powers our ingestion pipelines and real-time data processing systems. Our platform ingests, processes, and distributes hundreds of thousands of events per second with…
Added 1 hour ago
DC
Civil Engineering Graduate/Asset Management Analyst
Dillon Consulting Limited
Fredericton, NB · Saint John, NB · Moncton, NB
- Full-time
…engineering design and asset management, turning complex client data into structured, predictive asset databases while supporting the design of municipal…
Added 1 hour ago
DC
Civil Engineering Graduate/Asset Management Analyst
Dillon Consulting Limited
Toronto, ON · Hamilton, ON · Kingston, ON · Oakville, ON · North York, ON
- Full-time
…engineering design and asset management, turning complex client data into structured, predictive asset databases while supporting the design of municipal…
Added 1 hour ago
DC
Civil Engineering Graduate/Asset Management Analyst
Dillon Consulting Limited
Winnipeg, MB
- Full-time
…engineering design and asset management, turning complex client data into structured, predictive asset databases while supporting the design of municipal…
Added 1 hour ago
RB
Lead Full Stack Developer
Royal Bank of Canada
Toronto, ON
- Full-time
This engineer will need to be very proficient in managing large sets of data, including excellent proficiency with ANSI-SQL querying structured and unstructured data sources (Snowflake,…
Added 1 hour ago
RB
Director, DevOps Regulatory Engineering
Royal Bank of Canada
Toronto, ON
- Full-time
Some data engineering experience: building pipelines and working with data platforms such as Snowflake

Lightmatter

Sr SDET– Firmware Automation

Toronto, ON, Canada

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Job details

Posting language: English
Posted: Oct 8, 2026

Original job description

Lightmatter is leading the revolution in AI data center infrastructure, enabling the next giant leaps in human progress. The company invented the world’s first 3D-stacked photonics engine, Passage™, capable of connecting thousands to millions of processors at the speed of light in extreme-scale data centers for the most advanced AI and HPC workloads.

Lightmatter raised $400 million in its Series D round, reaching a valuation of $4.4 billion. We will continue to accelerate the development of data center photonics and grow every department at Lightmatter!

If you're passionate about tackling complex challenges, making an impact, and being an expert in your craft, join our team of brilliant scientists, engineers, and accomplished industry leaders.

Lightmatter is (re)inventing the future of computing with light!

At Lightmatter, an SDET is a software engineer first , not a QA coordinator or manual tester. You'll design and build the frameworks, harnesses, and hardware-in-the-loop infrastructure that let firmware engineers test their own code continuously on real photonic hardware. You'll sit with the firmware team, spend time at the bench with oscilloscopes, debuggers, and optical instruments, and serve as the bridge between firmware and broader software and systems organizations.

Responsibilities

Own the architecture and roadmap of the firmware test automation framework across products, targets, sites, and teams
Design and build stable automation for new firmware features and hardware, held to production-quality engineering standards
Build and operate HIL test infrastructure: bench and rack fixtures, device farms, power/reset control, instrument integration, and CI orchestration on real photonic hardware
Define test strategy, plans, and reporting; lead test plan reviews across teams
Integrate firmware testing into CI/CD so every change is built, flashed, exercised on hardware, and reported automatically
Own framework reliability and flaky test metrics as first-class engineering problems
Build results, telemetry, and log pipelines for triage, trend analysis, and release decisions
Debug failures across the full stack (firmware, board, instrument, fixture, test code) and partner with engineers to resolve them
Participate in firmware design reviews to influence testability and diagnostics early
Integrate with data center management interfaces (CMIS, OpenBMC, DMTF); debug embedded systems using GDB, JTAG, and logic analyzers
Define diagnostics and monitoring architecture for photonic transceivers
Mentor engineers on test architecture and write clear documentation for non-specialists

Qualifications

8+ years of professional software development, primarily on embedded products, including designing test frameworks and infrastructure
BS or MS in Computer Science, Electrical Engineering, or equivalent experience
At least one automation framework or HIL system architected and built from scratch, adopted by other engineers, and in daily use and the ability to discuss its design, tradeoffs, and lessons learned
Strong Python: fixture and abstraction layers, hardware drivers, plugin/configuration architectures
Working fluency in embedded C/C++: able to read firmware drivers or state machines and write tests for edge cases
Experience owning CI/CD pipelines running tests on physical hardware (GitHub Actions, GitLab CI, Jenkins, or equivalent), including runner health, hardware allocation, and recovery
Track record of delivering robust automation under fast-changing requirements and hardware

Preferred Qualifications

PhD, or MS with 8+ years in embedded test automation or firmware development
Experience testing firmware for optical transceivers, photonic systems, or precision analog/mixed-signal hardware
Familiarity with CMIS, OpenBMC, or DMTF/Redfish
Experience with Pytest ecosystem and test tooling for Zephyr or FreeRTOS (Twister, ztest, Renode, QEMU, or similar)
Experience with optical and electrical test and measurement equipment
Startup experience
Thoughtful use of AI-assisted tools in test generation, triage, or analytics

Benefits

Comprehensive Health Care Plan (Medical, Dental & Vision)
Retirement Savings Matching Program
Life Insurance (Basic, Voluntary & AD&D)
Generous Time Off (Vacation, Sick & Public Holidays)
Paid Family Leave
Short Term & Long Term Disability
Training & Development
Commuter Benefits
Flexible, hybrid workplace model
Equity grants (applicable to full-time employees)

Benefits eligibility may vary depending on your employment status and location. Lightmatter recruits, employs, trains, compensates, and promotes regardless of race, religion, color, national origin, sex, disability, age, veteran status, and other protected status as required by applicable law.

Export Control

Candidates should have capacity to comply with the federally mandated requirements of U.S. export control laws.

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More about this job

Responsibilities

You will design and build firmware test automation frameworks and hardware-in-the-loop infrastructure to ensure continuous testing on real photonic hardware. You will also integrate these tests into CI/CD pipelines and collaborate with firmware engineers to debug failures across the full stack.

Requirements

Candidates must have 8+ years of professional software development experience, primarily in embedded systems, with a strong background in Python and C/C++. A bachelor's or master's degree in Computer Science, Electrical Engineering, or equivalent experience is required.

Skills

Firmware Automation
Python
Embedded C/C++
Hardware-in-the-loop (HIL)
CI/CD
Test Architecture
Embedded Systems
Photonic Systems
CMIS
OpenBMC
DMTF
GDB
JTAG
Logic Analyzers
Pytest
Zephyr

Benefits

Comprehensive Health Care Plan
Life Insurance
Generous Time Off
Paid Family Leave
Short Term & Long Term Disability
Training & Development
Commuter Benefits
Flexible, hybrid workplace model
Equity grants

Visa sponsorship

Not detected in the job text

Keywords

Firmware
Automation
Photonics
Embedded Systems
Python
C++
C
HIL
CI/CD
GitHub Actions
GitLab CI
Jenkins
CMIS
OpenBMC
DMTF
Redfish
Pytest
Zephyr
FreeRTOS
GDB
JTAG
Logic Analyzers
Transceivers
Hardware-in-the-loop
Telemetry
Debugging
Test Framework
Data Center
AI Infrastructure
Startup

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